PreprintCC BY 4.0arXiv
Classification of Double Saddle-Point Systems
Abstract
We offer a classification of a broad and practically relevant class of symmetric double saddle-point system. At the core of the paper is the division of the associated matrices into ``block-arrow'' and ``block-tridiagonal'' forms. We describe relevant applications, invertibility conditions, spectral properties, and block preconditioners. Our discussion is kept within a general framework rather than tailored to specific applications.
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BibTeX
@misc{bradley2026classification,
title = {{Classification of Double Saddle-Point Systems}},
author = {Susanne Bradley and Chen Greif},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2605.14157},
eprint = {2605.14157},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2605.14157},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Classification of Double Saddle-Point Systems
AU - Susanne Bradley
AU - Chen Greif
PY - 2026
DA - 2026/10/22
PB - arXiv
DO - 10.48550/arxiv.2605.14157
UR - https://arxiv.org/abs/2605.14157
AB - We offer a classification of a broad and practically relevant class of symmetric double saddle-point system. At the core of the paper is the division of the associated matrices into ``block-arrow'' and ``block-tridiagonal'' forms. We describe relevant applications, invertibility conditions, spectral properties, and block preconditioners. Our discussion is kept within a general framework rather than tailored to specific applications.
ER -